an investigation under way as tom pickering, a former statesman leading this, looking into it, the fbi has an investigation in addition to this congressional one. it's key to understand. because this was a tragedy. >> okay, so joe by your assessment did somebody in the state department make a mistake or was this a series of mistakes in several places, or can this be classified as a mistake? >> i think it's too early to call this a mistake. we're living in a volatile world. the middle east is in turmoil. and the middle east across the region for decades has consistently received threats at its embassies at its missions, its consulates. this is a tragedy. and the state department is the first agency interested, most interested in protecting its personnel overseas. but to determine now in the heat of the oversight and understanding what happened on the ground and the information gathering, it's still too early to tell. i really hope that we can respect the outcome of the legitimate investigations that are under way before we determine this. >> okay. was vice president biden right when he